Tunnel-lining of reinforced concrete blocks.



. Mws

No. 330,345. PATENTED SPT. 4, 1906'.

I A. F. MATTSON. TUNNEL LINING 0F REINFORGBD GGNGRBTB BLOCKS,

APPLICATION FILED JULY 6, 1905.

2 SHEETS-SHEET l.

No.' 830,345. PATENTED SEPT. 4, 1906. A. E. MATTSCN. TUNNEL LINTNC 0E EEINECECEE CONCRETE BLOCKS.

APPLICATTON FILED JULYG. 1905.

@A 2 SHEETS-SHEET 2 storage-bins, or the like; and my invention vide an interlocking bandol' tenon whic is said locking-rods7 which interlocking bands fectually interlock the completed structure. 35

' a segment thereof, drawn to a larger scale.

1,5l -Fig. iis a longitudinal sectional view of `strengthen the completed structure.

, rods therein to strengthen the sameI as more particularly described'hereinafter.

rrnn sfrArns PATENT ornron.

ALBli-,N F. 'MArTsoN. or PHILADELPHIA, PENNSYLVANIA.

TNNEL-LINING OF.REINFORCED CONCRETE BLOCKS.

. Specifvcation-` of Letters Patent. Application filed July 6l. 1905. l Serial No. 268.3420.

Patented sept. 4, 1906.

particularly relatesfto the formation' of concrete blocks and'themeans for securely joining the salme togetherI to form a` complete structure. I- j rlhe object of my invention is to make sectional blocks having embedded locking-rods which project therefrom for interlocking said blocks.,

A further object of rmy invention is to roadapted to fit into grooves formed in the edges of said' blocks and secured therein by tend `to lock the different sections and A still further object of my invention is to so arrange the locking-rods o f any o'ne block to securethe next adjoining block and also the next succeeding b ook, so as to more ef- A still further object of my invention is to reinforce each sectional block by embedding Referring vto the drawings,v Fi ure l is a cross-sectional view of a tunnel s owing my invention applied-thereto. '.Fig.- 2 isa longitudinal section of. F ig."l. Fig. 3 isa crosssectionalview similar to Fig. l, showingv only 3. Fig. 5 is aperspective view showing the details of construction. Fig. 6 is a detail view illustrating the manner of joining the interlocking band, and Fig. 7 is aviewillustrating 'the mannerl of interlocking lar e. blocks by using a double set of locking-ro s and also the` manner of reinforcing Vsaid blocks. Figs'. s", a", 877, 9g 9, 9", 10, 1o, 10', 11, 11, and 11 are detailed views showing some of the various forms of blocks for which the improvementsare adaptable.

In Ythe drawings, a represents the sectional blocks', made of concrete or other material, as desiredL and so shaped or curved that when theV blocks are oined together they will form the desired shape ofthe completed structure. The blocks a are provided with grooves on their edges to receive the interlocking bands d and the locking-rods I) from the adjoining blocks. The blocks a have embedded therein locking-rods c c and b. Said locking-rods are provided with hooks on their inner-ends to more securely anchor them in thefblock,

and the opposite ends of said rods project beyond theedge ofthe block, so that they may be locked around the interlocking bands d.

The lockir'ig-rods c c are short, as they are to engage the interlocking band d, which fits into the edge of the particular block"carrying said locking-rods c c, While the locking-rod is made long, so as to extend beyond the width of the next adjoining blocks andl be locked around the interlocking bandfor' those blocks. The interlocking bands d eX-. tend around the entire structure, and the ends S of said bands may be secured by Welding or bya sleeve m, as shown in Fi 6. L'lhe l, blocks a are reinforced by embed ed rods le, y. extending longitudinally through the same,

and by rods f, .which arebound around the rods e, as shown in Figs. 4 and 7, thus adding.' materially to the strength of the blocks.

The operation of my invention is yas fol-ji lows: The blocks are built together, sc asfto form a ring conforming to the shape of the tunnel or other structure tobe built. interlocking band d is then placed in the The grooves formed in the ed es of the\blocks` a.

The locking-rods care t en locked around `the interlocking band d. 'Thelockin' -rods b are allowedyto project beyond thebloc s until the second ring 'of blocks' is formed. The

second ring of blocks is so placed that the end A rooves thereof Will receive the lookin -rods Thus the end joints ofthe first `ring of blocks and the end joints of the second ring j j `of blocks-will be staggered. The second ring of blocks is then ready to receive an interlocking band, and the lookin -rods c ofI the said second ring of blocks loc ed to the said 'interlocking band\ and the locking-rods b' of the first ring of blocks locked tothe same interlockin band. This formationis continued until the structure is completed. The

joints'between "the blocks are iilled with cement to form the whole intoractically a monolithic structure. Eachbloc has formedl structure.

therein an aperture h, through which cement may be forced to fill any space which may be left between the blocks and any outside the blocks are used as a lining ofsome other structure. When the blocks are made large for heavy work, the locking-rods and.inter locking bands are duplicated, and ea'ch block has a double row of grooves formed in Fig. 7.

its edges. This construction is illustrated in In structures of small importance, and especially for vertical construction, I propose to omit the locking-rods C and c and substitute same with a 'tongue-and-groove arrangement similar to that shown in Figs. 10 and 11', but still use the interlocking band as 1. In a structure of the character described,

the combination of blocks arranged in rows, interlocking bands located between said rows ofl blocks, a locking-rod having 'one end thereof secured in said block and its other end extending beyond.v the next succeeding row of blocks vand adapted to be secured to This is of great advantage when' the interllocking band adjacent said second i .row of blocks, substantially as described.

' 2. In a structufrd of the character described, i

the combination of blocks arranged in rows, interlocking bands located between said rows of blocks, locking-rods of d ierent lengths secured in each block and projecting therefrom, the shorter locking-rods adaptedy to be secured to the interlocking band adjacent the row of blocks carrying said lockingrods and the longer lockingrods adapted to b'e secured to the interlocking band adjacent the'next succeeding row of blocks, substantially as described.

3. In a structure of the character described, the combination of blocks having grooves formed in their edges, said blocks arranged in rows, interlockingbandsl between each row of blocks, a locking-rod having one end secured in a block and its other lend secured to an adjacent interlockin band to hold the same to said block, said b ock also having a j longer locking-rod secured therein and eX- tending between the ends' of' the blocks forming the second row and adapted to be se` cured to the' interlockin band holding said last-mentioned row of b ocks, substantially as described.

In witness whereof I hereunto set my han in presence .of two witnesses.

Witnesses: y

E. ALconN, G. PAULsoN.

:ALBIN F. MAT'rsoN. y 

